[SalesForce] Find Org expiration date

Unfortunately there is no API exposed to make writing a tool to do this possible. An idea has been raised for this very use case.

Expose API / Objects for assigning Managed Package Licenses to Users

Currently the only way to assign a Seat License of an installed Managed Package to a particular user is through the Setup user interface --- there is no API or object which would allow a customer to programmatically assign licenses of an installed Managed Package to particular users.

Read more here.

Where there is a will there is a way...

Well in the spirit of never say never... there is the option of scripting the user interface using something like WebDriver (from the Selenium) world. In theory something like this could be developed to work its way through users that meet certain criteria.

First of all, don't panic. Salesforce holds on to orgs for a grace period, so all of your data, configuration, and users you set up during the trial are all still there. You should have approximately 30 days to get a hold of somebody before this data would be deleted. As long as you can still see that error, they haven't deleted your org. Second, the sales team usually responds to inquiries the same business day for emails, and are usually available over the phone during normal business hours.

Alternatively, during your trial, an Account Executive should have sent an email to the administrator for your org. Check your email, and it should include an email address and phone number you contact to get your service back up and running. Finally, you can go to Salesforce (English) or Salesforce (Japanese) and click on the link in the upper right corner ("Contact Us" or 「導入前のお問合せ」). Again, you should normally get a response within a business day.